Method of spotting yarn



Patented May 11, 192 6.

units stares TENT . HENRY n. vnnnnss, or ELMIRA, NEW YORK.

METHOD on srorrrne YARN,

No Drawing. Original application filed April 3, 1923, Serial No.629,633. Divided and this application filed December 30, 1925. SerialNo. 78,322.

This invention relates to a method of spotting yarn, and moreparticularly to a meth- 0d of dyeing long spots on a yarn while the yarnis in the form of a wound mass.

While a yarn having short spots or dyed portions may, by means ofcertain types of knitting machines, be formed into a fabric having anattractive mixed appearance, I have found that when other types ofknitting machinesare used it is necessary in order to produce anattractive fabric that the spots on the yarn be long, that is to say,several inches in length. My invention provides a method by which suchlong spots may be obtained quickly and economically while the yarn iswound on a core.

A method for accomplishing this result is described in my co-pendingapplication filed April 3, 1923, SerialNo. 629,633, now Patent Number1,577,884, March 23, 1926, of which the present application is adivision. My aforesaid application describes also apparatus by means ofwhich the method may be carried out, but as the method to which thepresent application is directed is indepen dent of the particular meansused in carrying it out, a description of such apparatus isnotincorporated herein.

In order that my invention may clearly be understood, I will describethe specific method embodying it.

After the yarn has been formed into a wound mass, such, for example, asa frustoconical mass wound on the conical core and commonly termed acone of yarn, dye is injected into the wound mass at a series of pointslying along the surface of the mass and separated by such distances thatthe portion of the mass dyed by the injection at one point contacts withbut does not materially overlap the portion of the mass dyed by theinjection at the next point. The points are so located that a lineconnecting them extends in the same general direction as that in whichthe yarn extends in the mass. The points may belocated along the lay ofthe yarn. In applying this method to cross-wound cones of yarn it may bedesirable to make injections at each point of several different seriesof points, and to locate the points of one series along one lay of theyarn of the cone and the points of anrice.

other series along another lay of the yarn of the cone.

A limited quantity of dye is injected at each point and this dye iscaused to penetrate from the surface of the mass from which it isinjected, which is usually the outer surface of the cone, to theopposite surface of the massyusually the inner surface of the cone. Suchpenetration of the dye through the mass may be obtained by injectinglimited quantities by means of the apparatus shown in my Patent No.1,456,344, issued May 22, 1928.

My invention is not limited to the specific method which has beendescribed.

that I claim is:

1. A method of spotting a mass of yarn wound in a regular manner, whichconsists in injecting a limited quantity of dye into the mass from eachof a series of points located along a surface of the mass at suchdistance from each other that the portions of the mass dyed by theinjections at adjacent points'join each other.

2. A method ofspotting a mass of yarnwound in a regular manner, whichconsists in injecting a limited quantity of dye into the mass from eachof a series of points located along a surface of the mass at suchdistance from each other that the portions of the mass dyed by theinjections at adjacent points join but do not materially overlapeachothe'r.

3. A method of spotting a mass of yarn wound in a regular manner, whichconsists in injecting a limited quantity of dye into the mass from eachof a series of points of its surface located along a lay of the yarn andat such distance from each other that the portions of the mass dyed bythe injections at adjacent points join each other.

4. A method of spotting a cross-wound cone of yarn, which consists ininjecting a limited quantity of dye into the cone at each of a series ofpoints regularlyspaced along one lay of the yarn at such distance fromeach other that the portions of the cone dyed by the injections atadjacent points of the series join each other, and injecting a limitedquantity of dye at each of a second series of points regularly spacedpoints on the outer surface of the mass so along the other lay of theyarn at such dis-' located that the portions of the mass colored 10tance from each other that the portions of by the dye penetrating fromthem join each the cone dyed by the injections at adjacent other to forma dyed band reaching from points join each other. the outer to the innersurface of the mass.

5. A method of spotting yarn, which com- In testimony whereof I havehereunto set prises causing dye to penetrate through a my hand. Woundmass of the yarnfrom a plurality of HENRY E. VAN NESS.

